Every year, up to 3% of permanent ATS units fail testing and need to be replaced, which often takes 12-16 weeks. The Trystar Portable ATS is on the job until the new, permanent ATS is installed. The same goes for shut down and turn around operations where backup power can be a crucial factor. Our compact, wheeled unit was designed from the start to be portable, and tough enough to withstand the wear and tear of rental and industrial usage.

The Trystar Portable ATS can also be used to support temporary and emergency power needs for pandemic response, mass casualty disasters and other urgent needs, including medical testing/screening centers and temporary hospitals.


400A Trystar Portable ATS– Dual Voltage ATS
Rated 200V-480V, Listed to UL Standard 1008, Nema 3R,


Source 1: 1 Set of Male 16 Series Panel Mounts (BK, BK, BK, WT, GN)
Source 2: 1 Set of Male 16 Series Panel Mounts (BK, BK, BK, WT, GN)


1 Set of Female 16 Series Panel Mounts (BK, BK, BK, WT, GN)


Aluminum Non-Corrosive ATS Enclosure, Open Transition Transfer Switch with LCD Touchscreen Controller, Ampacity Range: 100A-400A, Touchscreen Dual Voltage Selector, Initial Start Up Automatic Configuration. Numerous Powdercoat Colors Available, UV Print: Customer Logo, Padlockable Cover Over Input Panel Mounts, Mounted in Texture Black Tilt & Roll Cage, Auto Start Connections on Source 2, Clear Protective Flip Lids on All Panel Mounts to Prevent Accidental Contact, 400A Full Internal Bus Bar, No Cabling.


Introduction to the Trystar Portable Automatic Transfer Switch

Complementary Cable